Having a hard time finding the dagger in Ark Society (spoilers?)

[Mr. Toaster]

I want to do a specific assassination in Ark Society (last Honors) where I need a dagger for a ceremony, but the clue for the mission story point me to an area where I cannot find the dagger at all, some room behind a keycard area. Has anyone actually found the dagger and can you give me a location on the map where I can get it? Thanks! Been searching forever it seems.

[Unreal]

It is in a crate that you have to open with a crowbar in that general area.

I think there are around 9 crates.

[InstableMonster]

Go to the dagger’s location.
It’s not in the room with the workers, but the one with the Raiders instead.
We’ve added a screenshot of the correct box you’ll need to open above.
You’ll need a crowbar to open it, there are plenty in the area.
Once you have the dagger you need to head down to Janus’ body.
There are three guards in the room, that you can take out using the various distractions in the room.
Take Janus’ disguise and head upstairs to the funeral area.
You need to reach the harpist unseen, there is a path around the back covered with tall grass.
Wait for Sophia to arrive and then kill her.

https://www.youtube.com/watch?v=awZ6wzXyv60

timestamps in the description for the different story missions

[Mr. Toaster]

Ah gotcha! Maybe that's why I didn't see it. I'll check those crates. I thought they were just there to hide bodies in. Thank you!

[Mikey]

It is in the crate right next to guy mopping the floor (not sure if it swaps place for each playthrough) inside the western most building by the helicopter

[Mr. Toaster]

Thank you! The mission story waypoint pointed to that area, but I just couldn't find it. I will look there at the crates when I get home from work!